Spergularia rubra is an annual to short-lived perennial herb, prostrate or ascending, 5-30 cm.
Leaves opposite linear, to 0.4-3.5 cm long, about 0.1 cm wide, in tufts, triangular, conspicuous, chaffy stipules to 0.5 cm.
Flowers pink, petals shorter than sepals, 0.5 cm, May-Sept.
Fruit dry capsule to 0.5 cm, seeds less than 0.1 cm, wingless (use lens).
Wetland status: FACU.
Frequency in NYC: Infrequent.
Origin: Europe.
Habitat:Open sandy soil.